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Titolo:
ASAXS study of styrene-grafted sulfonated poly(vinylidene fluoride) membranes
Autore:
Torkkeli, M; Serimaa, R; Etelaniemi, V; Toivola, M; Jokela, K; Paronen, M; Sundholm, F;
Indirizzi:
Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 ys, FIN-00014 Helsinki, Finland Univ Helsinki, Polymer Chem Lab, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 ab, FIN-00014 Helsinki, Finland
Titolo Testata:
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
fascicolo: 13, volume: 38, anno: 2000,
pagine: 1734 - 1748
SICI:
0887-6266(20000701)38:13<1734:ASOSSP>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANGLE X-RAY; NICKEL-NEUTRALIZED IONOMERS; POLYMER MATRICES; SCATTERING; WATER;
Keywords:
PVDF; ASAXS; radiation grafting; fuel cell;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Torkkeli, M Univ Helsinki, Dept Phys, PB 9, FIN-00014 Helsinki, Finland Univ Helsinki PB 9 Helsinki Finland FIN-00014 lsinki, Finland
Citazione:
M. Torkkeli et al., "ASAXS study of styrene-grafted sulfonated poly(vinylidene fluoride) membranes", J POL SC PP, 38(13), 2000, pp. 1734-1748

Abstract

Small-angle and wide-angle X-ray scattering and anomalous small-angle X-ray scattering were used to investigate proton-conducting membranes prepared by radiation-induced styrene grafting and sulfonation of commercial poly(vinylidene fluoride) (PVDF-g-PS) films. The membranes retain the lamellar andhighly oriented structure of the original PVDF films even through excessive grafting and sulfonation. The sulfonate groups aggregate in the central part of the amorphous layers, where they form a weakly ordered structure that does not show any preferred orientation. This structure is suggested to be lamellar with alternate metal-sulfonated hydrate and PVDF-g-PS layers. The lamellar period is 15.1 Angstrom. (C) 2000 John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 21:54:21